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Suppose that with probability p, the random variable X has the distribution N(0,1) and with probability (1-p), X has the normal distribution N(1,1). Find the mean and the variance of X.
For the period from 1918 to the present, in a random sample of 9 wolves spotted in the region, what is the probability that 6 or more were male.
Body mass index is measures at the ratio of weight in kilograms to height in meters squared. Generate a 95% confidence interval estimate of the true BMI. 25 27 31 33 26 28 38 41 24 32 35 40.
Construct a 95% confidence interval for the population mean.
Calculating the mean, do you expect it to be greater than the median or less than the median. Why?
If you draw two balls without replacing the first one, what is the possibility that one ball is red and the other is white.
1assume your federal income tax rate fitr is 28 and state income tax rate sjtr. is 8. calculate your after-tax cash
Explain your answer to someone who is familiar with the t test for a single sample, but not with the t test for independent means.
Explain how you would settle on a reasonable level of significance for your scenario. Also explain what the type I and II errors would be if you reached the incorrect conclusion in your test.
Calculate a standard error for the sample mean production rate for the new method and what is the standard error of the $1600 estimate?
A restaurant claims that its speed of service time is less than 18 minutes. A random selection of 36 service times was collected, and their mean was calculated to be 17.1 minutes.
Suppose that each passenger may get out of the elevator at either of the 2nd or the 3rd floor. Note that 8 passengers are different. How many ways may the 8 passengers get out of the elevator?
Powerball is a lottery game. It involves choosing five white balls from a drum containing 55 balls and one red ball from a drum containing 42 balls. A player must match all five white balls and the red ball to win the jackpot.
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